WO2016207218A1 - Broche porte-outil avec dispositif de serrage pour un outil et machine-outil - Google Patents

Broche porte-outil avec dispositif de serrage pour un outil et machine-outil Download PDF

Info

Publication number
WO2016207218A1
WO2016207218A1 PCT/EP2016/064419 EP2016064419W WO2016207218A1 WO 2016207218 A1 WO2016207218 A1 WO 2016207218A1 EP 2016064419 W EP2016064419 W EP 2016064419W WO 2016207218 A1 WO2016207218 A1 WO 2016207218A1
Authority
WO
WIPO (PCT)
Prior art keywords
tool
tool spindle
clamping device
spindle
pressure medium
Prior art date
Application number
PCT/EP2016/064419
Other languages
German (de)
English (en)
Inventor
Christoph HINTERMEIER
Josef Reinauer
Original Assignee
Mauser-Werke Oberndorf Maschinenbau Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mauser-Werke Oberndorf Maschinenbau Gmbh filed Critical Mauser-Werke Oberndorf Maschinenbau Gmbh
Priority to CN201680036465.XA priority Critical patent/CN107848043B/zh
Priority to KR1020187002010A priority patent/KR20180020259A/ko
Priority to EP16733034.9A priority patent/EP3310512A1/fr
Publication of WO2016207218A1 publication Critical patent/WO2016207218A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks
    • B23B31/24—Chucks characterised by features relating primarily to remote control of the gripping means
    • B23B31/30—Chucks characterised by features relating primarily to remote control of the gripping means using fluid-pressure means in the chuck
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks
    • B23B31/06—Features relating to the removal of tools; Accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks
    • B23B31/24—Chucks characterised by features relating primarily to remote control of the gripping means
    • B23B31/26—Chucks characterised by features relating primarily to remote control of the gripping means using mechanical transmission through the working-spindle
    • B23B31/261—Chucks characterised by features relating primarily to remote control of the gripping means using mechanical transmission through the working-spindle clamping the end of the toolholder shank
    • B23B31/265—Chucks characterised by features relating primarily to remote control of the gripping means using mechanical transmission through the working-spindle clamping the end of the toolholder shank by means of collets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
    • B23Q17/002—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring the holding action of work or tool holders

Definitions

  • the invention relates to a tool spindle with a clamping device for a tool according to the preamble of patent claim 1 and a machine tool with such tool spindles.
  • the document DE 10 2004 009 217 A1 discloses a clamping device for a tool spindle, which is operated manually.
  • the disadvantage of this is the high time required for changing the tools.
  • the patent DE 10 2009 021 407 B4 discloses such a clamping device, wherein this is pre-assembled and adjusted, and is then used without further settings directly into an interior of a tool spindle. This insertion is almost only from the front of the tool spindle. Via the pull rod, which extends inside the tool spindle, the clamping and releasing forces for the tool are transferred from the rear area to the front area of the spindle.
  • a disadvantage of such tool spindles is that the drive for clamping and releasing the clamping device must be arranged in the rear region of the tool spindle, whereby the tool spindle reaches a considerable length. Furthermore, the rear portion of the tool spindle is often difficult to access.
  • the invention is based on the object to provide a tool spindle with automatic clamping device, wherein the energy supply for the operation of the clamping device has improved accessibility.
  • the claimed rotatable tool spindle has an automatic clamping device for a tool or a tool holder, wherein the clamping device is operated hydraulically or pneumatically.
  • the clamping device is arranged in an interior of the tool spindle.
  • the clamping device can be mounted from a front side (spindle nose).
  • an actuation of the clamping device ie a clamping and / or release, via a pressure medium supply, which is connectable or connected to the interior, and which is arranged on the front tool side half or the front tool-side end portion or the front of the tool spindle. This eliminates the drive for the clamping device at the rear of the tool spindle, and the area in which the drive energy for the clamping device is transmitted to the tool spindle, is more accessible.
  • the pressure medium supply is arranged on the outer circumference of the tool spindle, whereby their overall length is shortened.
  • the tensioning device is releasable via at least one release piston, which is arranged together with at least one corresponding pressure chamber in the interior. The pressure chamber is limited by release pistons.
  • the entire hydraulic or pneumatic actuators so all pistons and pressure chambers, arranged in the interior of the tool spindle.
  • tool is to be understood below (only) a tool holder.
  • the pressure medium supply of the clamping device can be effected by a detachable connection, wherein this compound is mounted exclusively for actuating the clamping device on the stationary tool spindle.
  • a detachable connection can be used to actuate the clamping device and / or other functions.
  • the stationary pressure medium supply can be arranged on the outer circumference of the tool spindle, the seals of which can be applied to the outer circumference, in particular at standstill, and can be lifted off from it, in particular, during rotation.
  • the pressure medium supply can be arranged in a spindle block. Furthermore, the pressure medium supply can be done by permanently mounted lines.
  • the tool change can be performed by auxiliary equipment such as e.g. Robot or pickup without manual activities of a machine operator also fully automatic. Only the command for loosening the jig and exchanging the tools is given through the machine control.
  • auxiliary equipment such as e.g. Robot or pickup without manual activities of a machine operator also fully automatic. Only the command for loosening the jig and exchanging the tools is given through the machine control.
  • the tool change can be done partly manually. For example, only the release of the tensioning device is triggered by a machine control command. All other activities are done manually.
  • the tool change can be done purely manually. Also, the release of the clamping device by activating the pressure medium supply can be done by the operation of a simple mechanism such as a ball valve.
  • a tool safety device can be used, which holds the tool after release.
  • This can have a release button on the outer circumference of the tool spindle, upon actuation of which the tool is finally released from the tool spindle. This tool can also secure the tool from the tool
  • a release command is initially given to the tool change by the machine control. Then the jig loosens the tool so that it is prevented from falling down by the tool lock. Then the operator actuates the release button of the tool safety device and removes the tool. After cleaning the inner cone of the tool spindle, the operator inserts the following tool into the cone until the tool lock snaps or clicks. Then, the tension command can be given from the machine control to the tensioner.
  • a simple emergency disassembly of the clamping device only in the region of the tool-side region or end portion of the tool spindle is possible if the tool spindle has a likewise rotatable driving ring which is arranged on the tool-side region or end portion and preferably also in the interior of the tool spindle.
  • the driving ring can be clamped, for example via at least one employed to a spindle longitudinal axis or axis of rotation retaining screw against the clamping device.
  • the interior of the tool spindle is preferably designed in a stepped or conical manner with decreasing diameters from the tool-side end section to a rear end section.
  • the retaining screws are designed as set screws or threaded pins and accessible from the outer circumference of the tool spindle.
  • the clamping device is used as a preassembled unit in the interior and therefore disassembled and removed by loosening the retaining screws. In a particularly preferred embodiment, this is possible even with a clamped tool.
  • the clamping device has a first pressure chamber, the pressurization causes a release of the tool, and which is arranged in the interior of the tool spindle.
  • a stationary pressure medium supply can be arranged on the outer circumference of the tool spindle, the seals on the outer periphery - in particular at standstill - can be applied and - in particular on rotation-are lifted from this.
  • the first pressure chamber can be connected or connected to the outer circumference via at least one channel formed in the tool spindle.
  • the pressure medium supply can be arranged in a spindle block.
  • a hydraulically or pneumatically actuated ejection ring can be arranged on the outer circumference of the tool spindle, which can be supplied with pressure medium via a secondary channel from the pressure medium supply, and thus can be moved toward the tool-side end section.
  • radially inwardly directed ejection fingers may be attached, which engage in a space below or behind the tool.
  • a slinger may be arranged on the outer circumference of the tool spindle, into which at least one stop screw for the ejection ring is screwed.
  • a slinger For uniform application of force and to avoid tilting preferably several uniformly distributed around the circumference stop screws are provided. If the state of the clamping device can be monitored via a support control device or via a non-contact sensor (in particular via a non-contact end switch with a feedback oscillator) which is connected to the machine control, the previously described semi-automatic or fully automatic tool change can be realized.
  • the support control device is used to monitor the flat surface of the tool on the cone of the tool spindle. This schedule can be e.g. not be correct if particles are trapped between the cone of the tool and the cone of the tool spindle.
  • the non-contact sensor is designed and / or arranged such that it detects the two states “tool clamped in clamping device” and “tool not clamped in clamping device”.
  • the sensor is further configured and / or arranged such that it also recognizes the state "tensioning device clamped empty”.
  • the non-contact sensor monitors to the preferred axial position of the ejection ring.
  • the sensor can be positioned on the outer circumference of the ejection ring (direct monitoring), or the position of the ejection ring is transmitted via a Abtastgestfite to another area of the tool spindle according to the invention and detected there by the sensor (indirect monitoring).
  • a protection for the sensor is preferred, to which the sensor may e.g. to be shed.
  • an automatic cleaning device for the cone is preferred in addition to the non-contact sensor and support control device.
  • the plant control device and the cleaning device also with the pressure medium are operable, which is also supplied via said pressure medium supply.
  • the pressure medium can over the mentioned or supplied via another releasable connection.
  • a further seal can be provided, which is arranged axially adjacent to one of said seals and forms or limits the further detachable connection with it.
  • the investment control device can be realized via a query of a pressure fluid jam.
  • the cleaning device can be realized via a directed on the cone pressure medium spiral.
  • the tool spindle has a concentric slide, on the outer circumference of which a first release piston is fastened or axially accommodated somewhat movably, which delimits the first pressure space.
  • the slider is preferably arranged substantially in the interior of the tool spindle.
  • a lifting cone is preferably formed or fastened to the slider, via which segments of a spreading forceps of the tensioning device can be spread. This allows the segments engage behind the hollow shaft taper and thus fix the tool to the tool spindle.
  • the slide may be formed by a draft tube, in which a channel for an inner cooling (lubrication) middle supply (IKZ) is arranged.
  • IKZ inner cooling (lubrication) middle supply
  • the clamping device may comprise a cylinder which is inserted concentrically into the interior of the tool spindle.
  • the first pressure space can be arranged in the cylinder and the first release piston can be guided.
  • Manufacturing technology and assembly technology is simple, when the interior of the tool spindle and the components of the clamping device including the slider are concentric with each other.
  • the clamping device has a second pressure chamber, the pressurization causes a release of the tool, and which is bounded by a second release piston. Both solutions Pistons are formed or attached to the slider.
  • the second pressure chamber can be easily limited in terms of device technology by an inner circumferential wall of the tool spindle.
  • the tensioning device has at least one pressure spring acting in the tensioning direction of the tool - in particular a plate spring packet - over which the tension force can be generated and permanently transmitted to the slide.
  • the compression spring may rest on the one hand on a side remote from the second pressure chamber side of the second release piston and on the other hand on a cylinder bottom of the cylinder.
  • this is preferably arranged on the outer circumference of a slide portion in the interior of which a pressure medium connection or a connecting channel between the two acting in the release direction of the tool pressure chambers is formed.
  • the clamping device has a second pressure chamber, which acts in the clamping direction of the tool, and which is arranged in the interior of the tool spindle, and which is preferably also concentric.
  • the second pressure chamber may be arranged in the cylinder and limited by a cylinder bottom of the cylinder.
  • the slider can be additionally fixed.
  • a plurality of locking elements are distributed uniformly around the circumference.
  • the locking element is inserted into a recess with an oblique bottom of the slider and radially clamped against a conical inner wall of the cylinder.
  • the inclined base is steeper than the conical inner wall.
  • the tensioning device may comprise a tensioning piston, which is fastened on the outer circumference of the slide, and which is arranged in the interior of the tool spindle.
  • the clamping piston is arranged between the second pressure chamber and the first release piston and limits the second pressure chamber.
  • At least one compression spring is arranged between the tensioning piston and the first release piston.
  • several compression springs are evenly distributed on the circumference of the two pistons.
  • the machine tool according to the invention has one or more prescribed tool spindles, on the outer peripheries of which in each case a pressure medium supply is arranged.
  • the pressure medium supplies are connectable or connected to a central pressure medium source or a separate pressure medium source of the machine tool.
  • the uniform operating pressure is preferably 24 bar.
  • FIG. 1 shows a tool spindle according to the invention according to a first embodiment in a longitudinal section
  • FIG. 2 shows in a further longitudinal section the tool spindle from FIG. 1,
  • FIG. 3 shows a section of a further longitudinal section of the tool spindle from FIG. 1,
  • FIG. 4 shows a perspective view of the tool spindle from FIG. 1
  • FIG. 5 shows a rear view of the tool spindle from FIG. 1
  • FIG. 6 shows a tool spindle according to the invention according to a second exemplary embodiment in a longitudinal section
  • FIG. 7 in a further longitudinal section, the tool spindle from FIG. 6,
  • FIG. 8 shows in a further longitudinal section the tool spindle from FIG. 6,
  • FIG. 9 shows a rear view of the tool spindle from FIG. 6, FIG.
  • Figure 1 1 a non-contact sensor for monitoring the tensioning device.
  • FIG. 1 shows a longitudinal section of a first exemplary embodiment of the tool spindle 1 according to the invention. It is driven by a drive, not shown in Figure 1, which is coupled to a rear end portion 2 of the tool spindle, rotating about a longitudinal axis 3.
  • a clamping device for coupling and securing a tool 6 is provided in the area of a front end section 4 of the tool spindle 1.
  • the tool 6 has a hollow shaft cone 8, which is inserted into a concentrically stepped and the tool-side end portion 4 open interior 10 of the tool spindle 1.
  • a lifting cone 14 which is formed integrally on a slide 16 designed as a draw tube, is drawn in along the longitudinal axis 3 (in FIG. 1 to the right).
  • the slider 16 is fixedly connected to a sliding portion serving as an extension 18.
  • piston is fixed, which serves as an abutment for a disc spring assembly 22. This is arranged concentrically on the outer circumference of the slide portion 18 and is supported on the tool side on a cylinder bottom 24 of a cylinder 26, which via a cutting disc 28 and is clamped by a driving ring 30 by means of screws or screws 32 against a shoulder of the interior 10.
  • the partial spring assembly 22 moves the second release piston 20 in the direction of the rear end portion of the tool spindle and pulls over the slider portion 18 and the slide 16 the Hubkonus 14 between the segments 12 of the spreading forceps, so that the tool 6 clamped and kept.
  • first pressure chamber 34 and a second pressure chamber 36 act in the release direction of the tool 6.
  • the first pressure chamber 34 is arranged in the cylinder 26 and limited by this, while the second pressure chamber 36 is disposed in the interior space 10 and limited by this.
  • Both pressure chambers 34, 36 have on the tool side a release piston 20, 38, wherein both release pistons 20, 38 are attached to the outer circumference of the slide 16 and the slide portion 18, respectively.
  • tool spindles 1 are grouped in a machine tool having a common machine control 39 and a common compressed air pump. About the machine control 39, the compressed air supply of the individual tool spindles 1 is controlled.
  • the tool change can be done fully automatically by a robot without any manual actions of a machine operator. Only the command for releasing the jigs and exchanging the tools 6 is given through the machine controller 39.
  • the tool change can be done partly manually. For example, only the release of the tensioning devices is initiated by a command from the machine control 39. All other activities are done manually.
  • the tool change can be done purely manually. Also, the release of the clamping devices by activating the compressed air supply can be done by the operation of a simple mechanism such as a ball valve.
  • FIG. 2 shows the tool spindle 1 from FIG. 1 in a further longitudinal section.
  • the cutting plane is selected such that a first channel 40 can be seen for compressed air, a (first) the body of the tool spindle 1 penetrating channel portion and a (second) between the cylinder 26 and the body of the tool spindle 1 arranged axial channel portion and a plurality (Third) has the cylinder 26 penetrating radial channel sections.
  • a second channel 42 is shown, via which the force acting in the release direction of the tool 6 first pressure chamber 34 is connected to the force acting in the release direction of the tool 6 second pressure chamber 36.
  • the second passage 42 has a plurality of radial passage portions 42a penetrating the slide portion 18 and a second axial passage portion 42b disposed between the slide portion 18 and an inner coolant supply refrigerant pipe 44 accommodated inside the slide portion 18.
  • the coolant tube 44 also extends through the slide 16 and the lifting cone 14 and opens at the tool. 6
  • a stationary flange 46 is provided on its outer periphery, on which a port 48 and in which a channel 50 are formed, wherein a spindle-side mouth of the channel 50 minimally spaced from a flange-side mouth of the first channel 40 of the tool spindle 1 is.
  • the mouth of the channel 50 and two radially adjacent self-applying seals 52 are slightly spaced from the outer circumference of the tool spindle 1.
  • the port 48 is supplied with compressed air, whereby initially the two self-applying seals 52 are applied to the outer circumference of the tool spindle 1, and then the compressed air supply of the two acting in the release direction of the tool 6 pressure chambers 34, 36 via the two channels 40, 42 takes place.
  • a secondary channel 54 which extends through the body of the tool spindle 1 in the direction of the tool 6.
  • the secondary channel 54 opens in the region of an ejection ring 56, which comprises the tool spindle 1 at its tool-side end portion 4.
  • Tool side on the ejection ring 56 are uniformly distributed around the circumference ejection fingers 58 which extend radially inwardly and engage behind a collar of the hollow shaft cone 8.
  • the disc spring assembly 22, the two release pistons 30, 38, designed as a draft tube slide 16 with the lifting cone 14 and the slide portion 18, the coolant tube 44, the cutting disc 28, the driver ring 30, both acting in the release direction pressure chambers 34, 36 and the Body of the tool spindle 1 are rotationally symmetrical to the longitudinal axis.
  • FIG. 3 shows a detail of the first exemplary embodiment of the tool spindle 1 according to the invention according to FIGS. 1 and 2 in a further longitudinal section.
  • a displacement of the ejection ring 56 is limited in the direction of the tool 6 by evenly distributed on the circumference stop screws 60.
  • the stopper screws 60 are screwed into a slinger 62 in the axial direction, which is fixed to the outer circumference of the body of the tool spindle 1.
  • the slinger 62 must be pushed in the direction forward, so that the retaining screws 32 can be solved.
  • the ejection ring 56 is moved with the ejection fingers 58 to the tool 6 and separated from the clamping device via the compressed air of the secondary channel 54.
  • the compressed air at the connection 48 is switched off, whereby the two self-applying seals 52 are lifted off the outer circumference of the tool spindle 1, and the plate spring assembly 22 can retract the lifting cone 14, and the segments 14 of the spreading forceps the tool 6 can clamp.
  • Figure 1 also shows the slinger 62 and the ejection ring 56, wherein the stop screws and the ejection fingers are not visible in this section plane.
  • a sealing air channel 64 is shown, which opens into a region between the slinger 62 and one of the two self-applying seals 52.
  • a blocking air connection 66 of the sealing air channel 64 is supplied with compressed air even during rotation of the tool spindle 1, so that compressed air always penetrates between the slinger 62 and the stationary flange 46 to the outside and contamination is prevented.
  • FIG. 4 shows a perspective translucent representation of the tool spindle 1 according to the invention according to the preceding figures. It can be seen in particular that on the ejection ring 56 two opposing ejection fingers 58 and two opposing stop screws 60 are provided. Furthermore, FIG. 4 shows a tool lock 68 which prevents the tool 6 from falling out and falling down from the tool spindle 1 after it has been separated by the ejection ring 56. The tool safety 68 will be explained in more detail with reference to the second embodiment in Figures 6 and 7.
  • FIG. 5 shows, in a rear view, the tool spindle 1 with a translucent view of the flange 46 in a viewing direction from the rear towards the tool-side end section.
  • connection 48 and the sealing air connection 66 are provided, which are spaced apart in the circumferential direction and arranged at the same radius.
  • the connection 48 serves for applying the seals 52, for releasing the clamping device and for ejecting the tool 6 and is supplied only when the tool spindle 1 is at a standstill.
  • the blocking air connection 66 serves for permanent admission with sealing air.
  • FIG. 6 shows a second exemplary embodiment of the tool spindle 101 according to the invention in a longitudinal section.
  • the essential difference from the first embodiment shown in Figures 1 to 5 is the fact that the clamping force, which leads to the drawing of the Hubkonus 1 14 between the segments 12 of the collet, is generated by compressed air.
  • the connection 148b which merely serves for clamping the clamping device or for clamping the tool 6 in the second embodiment, via the channel 150b formed in the flange 146 and via the first channel 140b formed in the tool spindle 101 in a direction acting in the clamping direction second pressure chamber 136 pressure medium out.
  • the second pressure chamber 136 is arranged in the cylinder 126, the cylinder bottom 124 is arranged on the tool side and is fixed there via the driver ring 130.
  • a clamping piston 170 is guided in the cylinder 126 and limits the second pressure chamber 136. Since the clamping piston 170 is attached to the outer circumference of the slide 1 16, so that (in Figure 6 to the right) clamping movement of Hubkonus 1 14 is generated. Figure 6 shows the retracted Hubkonus 1 14 and thus the cocked position of the clamping device.
  • FIG. 7 shows a further longitudinal section through the second exemplary embodiment according to FIG. 6.
  • the sectional plane is selected such that two out of four locking elements 178 can be seen, which penetrate the collar 174 of the release piston 138.
  • the four locking elements 178 serve as additional fixation of the slider 1 16 in the tensioned position shown in Figure 6.
  • the locking elements 178 serve as clamping pieces, which jam between the conical inner wall 176 and a respective recess 179 of the slider 1 16.
  • a compressed air pulse (of eg 24 bar) is given at the end of the displacement of the slide 1 16 by means of compressed air in order to move the locking elements 178 via the release piston 138 and via a mechanical impulse towards the rear end section 2 and thus firmly clamp.
  • Figure 7 shows two of the four locking elements 178, which are always inserted into the corresponding recess 179, and which are not stretched in the state shown in Figure 7 against the conical inner wall 176.
  • the self-applying seals 152 were previously brought into contact via the connection 148a and the channel 150a of the flange 146 and supplied the two-part pressure chamber 134 with compressed air.
  • the release piston 138 has been moved to the left, thereby releasing the locking elements 178.
  • the release piston 138 has accumulated on the clamping piston 170 and has pushed this together with the attached slide 1 16 in the release position shown in Figure 7.
  • the acting in the release direction first pressure chamber 134 is divided in the second embodiment into two mutually spaced subspaces, which are always connected by printing technology.
  • the tool lock 68 has a pin 69 which penetrates radially into a corresponding through-hole of the hollow shaft cone 8 of the tool 6.
  • a release button 180 of the tool lock 68 is pressed, the pin 69 is released from the passageway via a rocker arm. pulled out and thus released the tool 6 final.
  • This tool lock 68 is particularly important when several tool spindles according to the invention are combined to form a machine tool which, via a central compressed air supply, supplies the tools 6 of all tool spindles 1; 101 at the same time.
  • FIG. 8 shows a further longitudinal section through the second exemplary embodiment of the tool spindle 101 according to the invention, with the clamping device in the released position.
  • the entire flow path of the compressed air is shown in the release function.
  • the compressed air flows into the part of the first pressure chamber 134 arranged on the outer circumference of the collar 174 of the release piston 138 and from there between the collar 174 and a rear one
  • the channel 140c is subdivided essentially into three sections: A first section extends from the outer circumference of the tool spindle 101 through its body to the outer circumference of the cylinder 126.
  • a second section extends along the outside of the cylinder 126.
  • a third section consists of a plurality of radial bores through the cylinder 126, which are arranged adjacent to the rear part of the cylinder 126.
  • FIG. 9 shows in a rear view the second embodiment of the tool spindle 101 according to the invention and in particular a translucent view of the flange 146.
  • At the rear end portion of the tool spindle 101 facing side of the flange 146 are circumferentially spaced from each other and the same radius of the terminal 148 a for the The function "apply seals", the connection “clamp tool” connection 148b, the “release and eject tool” connection 148c and the sealing air connection 66.
  • the associated channels 150a, 150b, 150c and the sealing air channel 64 are shown in phantom ,
  • connection 148a the "clamp tool” connection 148b, the “release and eject tool” connection 148c and the sealing air connection 66 can also be at different radii be arranged.
  • FIG. 10 shows a multi-spindle machine tool according to the invention in a sectional perspective view. Furthermore, a robot is shown, which performs the tool change, so on the one hand, the tools 1 decreases from the tool spindles 6 and moves them away, and on the other hand moves the tools 1 to the tool spindles 6 and attaches them.
  • the machine tool is an inverse machine with stationary tool spindles 1, to which workpieces (not shown) are moved.
  • the frame construction of the machine tool results in particular an upper compartment 182 and a frontal compartment 182, wherein in these two compartments 182 each have a plurality of rows of tool spindles 1 are provided, in each of which the same tools 6 are attached and tensioned.
  • six tool spindles 1 are provided per row, so that six workpieces are processed simultaneously.
  • pivoting of the workpieces by 90 degrees in the machine tool shown can be dispensed with since the two compartments 182 with the spindle rows are set at 90 degrees to one another.
  • Figure 1 1 shows a section of the first embodiment of the tool spindle 1 according to the invention according to Figures 1 to 5 with a non-contact sensor 71 for monitoring the clamping device in a perspective view.
  • the sensor 71 is designed as a non-contact end switch with fed-back oscillator. It is arranged on the outer circumference of the ejection ring 56 and attached to the outer periphery of the flange 46.
  • the non-contact sensor is configured and / or arranged such that it detects the three states "tool clamped in clamping device” and “tool not clamped in clamping device” and "clamping device clamped empty”.
  • the tool spindle 1 according to the invention; 101 allows a semi-automatic tool change for an operator using the following procedure, with three space baskets standing by a door of an enclosure with a new tool and a manual cone cleaner:
  • the said method with a tool spindle 1; 101 takes about 20 seconds. In a machine tool with four such tool spindles 1; 101 results in a time requirement of about 60 seconds. This is significantly faster than the prior art method in which the operator releases the tensioner with a hex wrench and tightens with a torque wrench.
  • the method according to the invention is even more reliable since the influence of human errors, for example when clamping with the torque wrench, is eliminated.
  • a tool spindle which has a front mountable and operable tensioning device.
  • Disclosed is still a machine tool with one or more such tool spindles.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Auxiliary Devices For Machine Tools (AREA)
  • Gripping On Spindles (AREA)

Abstract

L'invention concerne une broche porte-outil (1, 101) qui comporte un dispositif de serrage pouvant être actionné et monté depuis la face avant. L'invention concerne également une machine-outil munie d'une ou de plusieurs broches porte-outil (1, 101) de ce type.
PCT/EP2016/064419 2015-06-22 2016-06-22 Broche porte-outil avec dispositif de serrage pour un outil et machine-outil WO2016207218A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201680036465.XA CN107848043B (zh) 2015-06-22 2016-06-22 具有用于刀具的夹紧装置的刀具主轴和机床
KR1020187002010A KR20180020259A (ko) 2015-06-22 2016-06-22 공구용 클램핑 장치를 포함하는 공구 스핀들 및 공작 기계
EP16733034.9A EP3310512A1 (fr) 2015-06-22 2016-06-22 Broche porte-outil avec dispositif de serrage pour un outil et machine-outil

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE102015109983 2015-06-22
DE102015109983.7 2015-06-22
DE102015121559.4 2015-12-10
DE102015121559 2015-12-10
DE102016108169 2016-05-03
DE102016108169.8 2016-05-03

Publications (1)

Publication Number Publication Date
WO2016207218A1 true WO2016207218A1 (fr) 2016-12-29

Family

ID=56289479

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2016/064419 WO2016207218A1 (fr) 2015-06-22 2016-06-22 Broche porte-outil avec dispositif de serrage pour un outil et machine-outil

Country Status (4)

Country Link
EP (1) EP3310512A1 (fr)
KR (1) KR20180020259A (fr)
CN (1) CN107848043B (fr)
WO (1) WO2016207218A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10850332B1 (en) 2019-06-11 2020-12-01 Kennametal Inc. Hollow shank tool holder
WO2022268757A1 (fr) * 2021-06-25 2022-12-29 Kadia Produktion Gmbh + Co. Procédé de changement d'outil sur une machine-outil et machine-outil
EP4163035A1 (fr) * 2021-10-07 2023-04-12 Reishauer AG Dispositif de traction pour moyen de serrage et moyen de serrage équipé de celui-ci
EP4023376A4 (fr) * 2019-11-01 2023-09-13 DMG Mori Co., Ltd. Support d'outil de coupe et machine-outil

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI780661B (zh) * 2021-04-14 2022-10-11 寅翊智造股份有限公司 主軸結構
CN113385961A (zh) * 2021-06-30 2021-09-14 台州科技职业学院 一种五轴加工中心的刀具锁紧装置及换刀方法

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2515183A (en) * 1948-09-21 1950-07-18 Benjamin Chuck
US3030119A (en) * 1961-01-05 1962-04-17 Richard L Myers Hand and power operated collet chuck
DE3235319A1 (de) * 1982-09-24 1984-04-12 Mauser-Werke Oberndorf Gmbh, 7238 Oberndorf Verfahren und vorrichtung fuer automatischen werkzeugwechsel
EP0128275A1 (fr) * 1983-06-08 1984-12-19 TBT Tiefbohrtechnik GmbH und Co. KG. Mandrin pour la fixation d'un outil
US4614470A (en) * 1984-07-27 1986-09-30 Toshiba Kikai Kabushiki Kaisha Automatic mounting and dismounting apparatus of attachments
DE10319796A1 (de) * 2003-04-30 2004-11-18 Sigma Gmbh Hyraulischer oder pneumatischer Antrieb für einen Werkstück- bzw. Werkzeugspanner
DE102004009217A1 (de) 2004-02-12 2005-09-01 Gühring, Jörg, Dr. Spannelement für Werkzeugspanner
DE202009004585U1 (de) * 2009-04-03 2009-06-18 Ortlieb Präzisions-Spannzeuge GmbH + Co. Innenspannfutter für zu spannende Teile, z.B. Werkstücke, Werkzeuge o.dgl.
DE102009021407B4 (de) 2009-05-14 2013-10-31 Sigma Gmbh Spannsatz

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4597699A (en) * 1984-08-27 1986-07-01 Erickson Tool Company Quick-connect mechanism
JPH08229714A (ja) * 1995-02-24 1996-09-10 Alps Tool:Kk チャック装置
CN1155860A (zh) * 1995-05-10 1997-07-30 动力工具霍德尔斯公司 快速松脱式卡头装置
JP4846410B2 (ja) * 2006-03-30 2011-12-28 シチズンホールディングス株式会社 主軸頭装置及び工作機械
US7448302B2 (en) * 2007-02-08 2008-11-11 Daniel Huang Adapter coupling device

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2515183A (en) * 1948-09-21 1950-07-18 Benjamin Chuck
US3030119A (en) * 1961-01-05 1962-04-17 Richard L Myers Hand and power operated collet chuck
DE3235319A1 (de) * 1982-09-24 1984-04-12 Mauser-Werke Oberndorf Gmbh, 7238 Oberndorf Verfahren und vorrichtung fuer automatischen werkzeugwechsel
EP0128275A1 (fr) * 1983-06-08 1984-12-19 TBT Tiefbohrtechnik GmbH und Co. KG. Mandrin pour la fixation d'un outil
US4614470A (en) * 1984-07-27 1986-09-30 Toshiba Kikai Kabushiki Kaisha Automatic mounting and dismounting apparatus of attachments
DE10319796A1 (de) * 2003-04-30 2004-11-18 Sigma Gmbh Hyraulischer oder pneumatischer Antrieb für einen Werkstück- bzw. Werkzeugspanner
DE102004009217A1 (de) 2004-02-12 2005-09-01 Gühring, Jörg, Dr. Spannelement für Werkzeugspanner
DE202009004585U1 (de) * 2009-04-03 2009-06-18 Ortlieb Präzisions-Spannzeuge GmbH + Co. Innenspannfutter für zu spannende Teile, z.B. Werkstücke, Werkzeuge o.dgl.
DE102009021407B4 (de) 2009-05-14 2013-10-31 Sigma Gmbh Spannsatz

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10850332B1 (en) 2019-06-11 2020-12-01 Kennametal Inc. Hollow shank tool holder
EP4023376A4 (fr) * 2019-11-01 2023-09-13 DMG Mori Co., Ltd. Support d'outil de coupe et machine-outil
WO2022268757A1 (fr) * 2021-06-25 2022-12-29 Kadia Produktion Gmbh + Co. Procédé de changement d'outil sur une machine-outil et machine-outil
EP4163035A1 (fr) * 2021-10-07 2023-04-12 Reishauer AG Dispositif de traction pour moyen de serrage et moyen de serrage équipé de celui-ci

Also Published As

Publication number Publication date
CN107848043A (zh) 2018-03-27
CN107848043B (zh) 2019-12-27
EP3310512A1 (fr) 2018-04-25
KR20180020259A (ko) 2018-02-27

Similar Documents

Publication Publication Date Title
WO2016207218A1 (fr) Broche porte-outil avec dispositif de serrage pour un outil et machine-outil
DE3136054C2 (de) Kraftbetätigtes Spannfingersystem
DE2257384C3 (de) Spannfutter für Drehmaschinen u.dgl. Werkzeugmaschinen
WO2006089608A2 (fr) Dispositif de serrage
DE3637823C2 (de) Hilfskraftbetätigtes Spannfutter
DE10011340A1 (de) Pneumatisch-hydraulisches Blindnietgerät
DE202006015097U1 (de) Hydraulische Spannvorrichtung zum Innen- und Außenspannen von Werkstücken
DE202013100177U1 (de) Werkzeughalter sowie Werkzeuganordnung mit einem Werkzeughalter und einem Bearbeitungswerkzeug
EP2686124B1 (fr) Broche à moteur
WO2004091848A1 (fr) Couplage haute pression destine au passage de fluides sur des systemes a changement rapide
DE102010047558B4 (de) Werkzeugmaschine mit austauschbarer Spindeleinheit
EP0870579A1 (fr) Etau
EP1506833A1 (fr) Connection de buse laser
DE102018121554A1 (de) Plandrehknopf und Verfahren zum Werkzeugwechsel
EP2616212B1 (fr) Dispositif de fixation et de serrage
EP2221142B1 (fr) Dispositif de serrage ainsi que procédé de fonctionnement du dispositif de serrage
EP4076869B1 (fr) Élément de préhension à pression négative et dispositif de préhension à pression négative
DE19848371A1 (de) Werkzeugmaschine mit Spanndorn
DE102007009993A1 (de) Betätigungseinrichtung zum axialen Bewegen einer Zugstange
WO2014012821A1 (fr) Procédé et composants destinés à fabriquer un ensemble outil pour une machine de perçage de trous profonds
EP1027947B1 (fr) Commande de serrage pour une barre de traction
DE10319796A1 (de) Hyraulischer oder pneumatischer Antrieb für einen Werkstück- bzw. Werkzeugspanner
DE3636421C2 (de) Automatische Schnellspanneinrichtung für Werkzeuge in Bohr- und Frässpindeln
EP0292022A2 (fr) Dispositif d'actionnement
DE102014220933B4 (de) Werkzeug zur spanenden Bearbeitung von Werkstücken

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16733034

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 20187002010

Country of ref document: KR

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 2016733034

Country of ref document: EP